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No. 607,492. Patented July I9, |898.

, H. L. THOMAS & W. C. NUSSER.

STOP COCK REPLA'CER.

(No Model.

v el

UNITED STATES PATENT OEEICE.

IIARRY L. THOMAS AND WILLIAM C. NUSSER, OFFINDLAY, OIlIO, ASSIGNORSV OF ONE-'THIRD TO EDSON E. MARVIN, OF SAME PLACE.

STOP-COCK REPLACER.

SPECIFICATION formingpart of Letters Patent No. 607,492, dated July 19, 1898. Application filed December 2f?, 1897. Serial No. 663,555. (No model.)

To all whom t may concern.- means of threads, form the body of the ma- Be it known that we,HARRY L.THOMAS and chine, which` is constructed to encircle the WILLIAM C. NIUSSER, citizens of the United plunger 'A B C K I Il and form astuiing- States, `residing at Findlay, in the county of box at O O-, which may be tightened by means new vand useful machine for removing and adjusting the nut II II to expand or release replacingstop-cocks, gates, or other valves tube C O and at same time to prevent the of sniiicient way upon pipes either underpresescape of the contents of the pipe L L around l sure or otherwise Without the loss of contents the plunger A B O K I while valve is open c5 of said pipes, of which the followiugis a specifor entrance of said plunger into pipe beyond, 6o ication. the barrel E E being also formed to receive Our invention relates to the removing and the head of the plunger A B O K and by replacing of stop-cocks, gates,`or other valves means of an offsetv to engage with a shoulder of sufficient Way upon pipes filled or containon plunger-tube K K to prevent the plunger ing liquids, gases, or other fluids, either un- A B C K I Il from pushing through rearward. 65 der pressure or otherwise, without emptying The plunger is constructed. to operate the .same of -their contents and without the. through the body, as above described, and to loss of the contents of said pipe or pipes in enter through stop-cock, gate, or other valve removing one stop-cock, gate, or other valve of sufficient way into pipe L L beyond, in

zo of sufficient way and replacing sameor anwhich the expansion-tube O is enlarged to 7o other stop-cock, gate, or other valve ofsufflcome firmly into contact with the inner circient fway upon said pipe; and the object of cumference of the pipe, and this is accomour invention is, first, to avoid thenecessity plished by tightening nut II, which pulls upon of tearing up paved or improved streets to plunger-rod A, and this upon head of plunger shut off the supply of liquid, fluids, or gases B, and this in turn upon expansion-tube C, 75 to any pipe in order to repair stop-cock, gate,A While at Sametime nut Il pushes upon plungeror other valve of sufficient way located inside tubes I and K and the latter against the exthe curb of street or elsewhere; secondly/to pansion-tube'O, causing the same to be comavoid the necessity of shutting off a streetpressed at the ends and enlarged in circummain or section of same while repairing or reference, entirely filling the pipe L L, remain- 8o placing stop-cock, gate, or other valve of suliing thus until released by nut Il and preventcientway to prevent theloss ofcontents of said ing escape of contents of pipe L L while repipe either' if under pressure or otherwise; moving and replacing the body, as above dethirdly, to avoid the necessity'of turningoff scribed, and the stop-cock, as shown M M M any other cock or valve in order to repair or M N in Fig. 2, gate, or other valve of suffi- 85 v replace any istop-cock, gate, or other valve of cient way.' The plunger-rod A is securely sufficient way upon 'any pipe. 'We attain fastened to plunger-head B and is encircled these objects by the mechanism in the accomby expansion-tube C, plunger-tube'K, stuftpanying drawings, in whiching-box D D, and plunger-tube I, through all -4o Figure ly is a vertical section of the entire of which it Works by means of 'nut 1I. They 9o machine. IFig. 2 is a view of the machine as plunger-tube K and I is purposely construct# f it 'appears attached to valve to be removed ed of two pieces, engaging with each other by from pipe, dotted or broken lines denoting. means of threads to afford a stuffing-box D D parts foreign to the invention. Fig. 3 shows around plunger-rod A to prevent the escape 21,5 barrelsoffv machine and valveremoved, with of the contents of pipe L L along said rod. 95 plunger still in place to prevent the escape of The nut II is threaded to Work upon plungerthe contentslof pipe. rod A, which is correspondingly threaded .to

Similarletters refer to similar parts through receive same, said nut II being also formed out the several views. Awith shoulder, affording a side bearing. on a The barrel E E and nut G G, united by corresponding offset in plunger-tube I, thus loo 5 Hancock and' State of Ohio, have invented a of nut G G to hold plunger in'position while 55 giving a straight and even bearing 11 upon plunger-rod A end of plunger-tube I,

against which nut H pushes in tightening. What We do claim as our invention is 5 The combination of a barrel E E boxO O with adj ustin rod with expansion-t stuffing g-ut G G and plungerube containing a stuffing-box D D whereby a stop-cock, gate or other valve of sufcie ro and another replaced nt Way may be removed upon any pipe Without the loss `of the contents of the said pipe Whether the same be under pressure or not which is accomplished substantially as set forth in this specification.

HARRY L. THOMAS. WILLIAM C.' N USSER..` 

